america and south africa. so those were some of the positive things that happened, but there was a lot of emotion there in that classroom today. anderson? >> there's emotion really everywhere in this town. i've had people come up to me and say, i have no more tears left. and yet we see people crying all the time. it's hard not to when you're here. president obama's arrival, of course, reminds us of the many difficult roles that a president plays in our national life. i want to bring in our chief white house correspondent jessica yellin, who's joining me here right now. the president, we believe, is already inside the high school, yes? >> yes, he's grieving and comforting families who have lost loved ones. >> and the service is to start at 7:00. he'll also be speaking there. >> he'll be speaking, and i'm told that the president has himself been working on these remarks. he's taken it personally and been preparing them, even on his way up here, anderson. told that the remarks will speak to the nation's obligatio